S
M
T
W
T
F
S
30
80°
54°
31
82°
43°
1
82°
53°
2
83°
49°
3
82°
44°
4
86°
43°
5
86°
52°
6
85°
43°
7
75°
46°
8
81°
40°
9
83°
40°
10
84°
38°
11
87°
53°
12
88°
43°
13
85°
46°
14
70°
38°
15
78°
44°
16
82°
50°
17
80°
43°
18
79°
47°
19
80°
49°
20
82°
50°
21
79°
48°
22
75°
53°
23
78°
51°
24
77°
47°
25
77°
48°
26
72°
40°
27
73°
45°
28
68°
36°
29
62°
33°
30
65°
39°
1
68°
36°
2
73°
42°
3
68°
33°
Temperature Graph
°F
Avg. Hi
Avg. Lo
Actual Hi
Actual Lo
Forecast Hi
Forecast Lo
September Weather in Cache Junction
Cache Junction's September 2026 forecast shows daily high temperatures ranging from 62° to 85°, with overnight lows between 33° and 53°. The average high for September is 75° with an average low of 44°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Cache Junction. See also: October | November | December.
